I first noticed this in beta 2, but it persists in beta 3. When opening a resource with TOC sidebar already open (or even just switching tabs to such a resource), the content is not scaled correctly and results in erratic behavior. Closing and reopening the sidebar clears up the issue.
vs. 
An additional craziness that I noticed in the ESV sidebar is that some items are flipped vertically (until scrolling starts).
FWIW, this is on macOS 10.14.3, my program scaling is at 80% and my content scaling is at 110%.
EDIT: I've determined that this is directly correlated to program scaling. If I have the ESV panel the full height of my screen and program scaling at 70%, I end up with Daniel-Zachariah flipped vertically (12 items).
